when the bill came they knocked off £600 because of a little scratch.
账单收到时, 他们因一点擦痕减掉了600英镑。
there was plenty of time for the Middlesbrough batsmen to knock off the runs.
有足够的时间让米德尔斯布勒的击球手取得得胜分。
See main entry:knock
英汉双解词典包含131075条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。